New chicken in the flock.

I have 14 RR's (5 males which I need to get new homes for) all about 5-6wks. I recently had someone give us a 7 wk old White Leghorn hen. Shes sweet as can be. After the quarantine and slow introduction my RR's treat her like shes a ghost! Only my sweet rooster I am keeping seems to interact with her. And when he does its to make sure she does not go near the flock. When she tries to interact with the flock they run in fear! But at night in the coop they all roost peacefully together...I do not get it?! Will it just take time for them to accept and adjust?




Also the shovel is in there bc I just finished turning oversoil in a corner like I do everyday for them.